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I have written a multithreaded ODBC program which tries to insert data to 11
tables in MonetDB. Each thread has a connection handle, a statment handle
(comprising of insert into blah!....). Each thread on instantiation creates
the handles (connection, statement etc.), connects to the db, binds
meta-data, prepares query and executes the insert in a loop after reading
the bind values from a file. The program runs fine to a point following
which:
SQLExecute: Error: SQLstate HY010, Errnr 0, Message [MonetDB][ODBC Driver
1.0]Function sequence error
On closer examination it's the statement handle that is not in Prepared
state. I thought that this maybe because the asynchronous execution of the
previous execution of the commit isn't complete yet.
I recoded my commit as follows:
ret_sts = SQLEndTran(SQL_HANDLE_DBC, dbch, SQL_COMMIT);
while (ret_sts == SQL_STILL_EXECUTING)
ret_sts = SQLEndTran(SQL_HANDLE_DBC, dbch, SQL_COMMIT);
check(ret_sts, SQL_HANDLE_DBC, dbch, "SQLEndTran");
However, the ret_sts returns -1 which means a SQL_ERROR
This has me perplexed. Clearly the SQL is good else it wouldn't have
executed a no. of times in the first place. The stmth also look good, so
there is no stepping by threads on each others memory. I can post the whole
program if needed.
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